October 2018
Beginner
794 pages
19h 23m
English
Content preview from Hands-On System Programming with Linux
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On a VM with 1 GB RAM, one CPU core and sequential make -j1
We configure the guest VM to have only one processor, clean up the build directory, and proceed once more, but this time with a sequential build (by specifying make -j1):
$ cd <linux-4.17-kernel-src-dir>$ perf stat make V=0 -j1 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- allscripts/kconfig/conf --syncconfig Kconfig SYSHDR arch/arm/include/generated/uapi/asm/unistd-common.h SYSHDR arch/arm/include/generated/uapi/asm/unistd-oabi.h SYSHDR arch/arm/include/generated/uapi/asm/unistd-eabi.h CHK include/config/kernel.release UPD include/config/kernel.release WRAP arch/arm/include/generated/uapi/asm/bitsperlong.h[...] << lots of output >> CC crypto/hmac.mod.o LD [M] crypto/hmac.ko CC crypto/jitterentropy_rng.mod.o ...
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